Play on the Singapore server for lower tiers as there are more players on that server. Your account works on both the Australia and Singapore servers as they are both part of the Asia server.

The Dude abides.

Spoiler

Marvin: "And then of course I've got this terrible pain in all the diodes down my left side."Arthur: "Is that so?"Marvin: "Oh yes. I mean I've asked for them to be replaced, but no one ever listens."Arthur: "I can imagine"Douglas Adams The Hitchhiker's Guide to the Galaxy

This the reason I free xp past tier 2 US LT to get M5. Got kicked out few time from queue. M5 at tier 3 also have hard time finding game. I dont have this problem with my last low tier grind (japan HT).

For Tier 1 to Tier 2, I recommend playing at around 6-8pm (GMT +8) [You can calibrate that time with your timezone if necessary]. Also, avoid the ANZ server. Stick to the SG server where there are more players starting out too. Given ANZ server's rather small population, any tier above five can also take up to a minute or two to find a team and almost never for tier 3 and below. If you want shorter queue times, SG server is the way to go. ANZ server is designed more for the ANZ community for better ping.

Given that you're a Blitz player, I assume you know the basics of the game and I don't see you needing to spend that much time below tier 3.